From Antiferromagnetism to Superconductivity: Numerical Evidence for SO(5) Symmetry
| dc.creator | Eder, R. | |
| dc.creator | Hanke, W. | |
| dc.creator | Zhang, S. C. | |
| dc.date | 1997-07-22 | |
| dc.date.accessioned | 2026-07-07T09:11:57Z | |
| dc.date.available | 2026-07-07T09:11:57Z | |
| dc.description | In this work, we present numerical results which support SO(5) symmetry as a concept unifying superconductivity and antiferromagnetism in the high-temperature superconductors. Using exact cluster diagonalization, we verify the recently proposed SO(5) multiplet structures for a widely used microscopic model, the t-J model. Our results show that the d-wave superconducting ground states away from half-filling are obtained from the higher spin states at half-filling through SO(5) rotations, that the dominant low energy resonance in the dynamical spin correlation function corresponds to a `pi-resonance' in the entire low doping region, and that the SO(5) symmetry is robust against inclusion of longer ranged Coulomb repulsion and next-nearest neighbor hopping. | |
| dc.description | Revtex file, 7 pages and 7 eps-figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9707233 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9707233 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/151864 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | From Antiferromagnetism to Superconductivity: Numerical Evidence for SO(5) Symmetry | |
| dc.type | text |